Evidence map›Paper›PMID 22734448›Full record

ArticleJournal of the International Society of Sports Nutrition2012

A sportomics strategy to analyze the ability of arginine to modulate both ammonia and lymphocyte levels in blood after high-intensity exercise.

Luis Carlos Gonçalves, Artur Bessa, Ricardo Freitas-Dias, Rafael Luzes, João Pedro Saar Werneck-de-Castro, Adriana Bassini, Luiz-Claudio Cameron

Open access · goldAbstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Metabolomics in Exercise and Sports: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2022
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  19. Amino acid supplementation and impact on immune function in the context of exercise.Journal of the International Society of Sports Nutrition · 2014
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Luis Carlos GonçalvesLaboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Artur BessaLaboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Ricardo Freitas-DiasLaboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Rafael LuzesLaboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
João Pedro Saar Werneck-de-CastroLaboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Adriana Bassini *Laboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Luiz-Claudio Cameron *Laboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Av. Pasteur 296, CEP: 22290-240, Rio de Janeiro, Brazil.
Universidade do Estado do Rio de Janeiro · BRUniversidade Castelo Branco · BRUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelled

backgroundExercise is an excellent tool to study the interactions between metabolic stress and the immune system. Specifically, high-intensity exercises both produce transient hyperammonemia and influence the distribution of white blood cells. Carbohydrates and glutamine and arginine supplementation were previously shown to effectively modulate ammonia levels during exercise. In this study, we used a short-duration, high-intensity exercise together with a low carbohydrate diet to induce a hyperammonemia state and better understand how arginine influences both ammonemia and the distribution of leukocytes in the blood.

methodsBrazilian Jiu-Jitsu practitioners (men, n = 39) volunteered for this study. The subjects followed a low-carbohydrate diet for four days before the trials and received either arginine supplementation (100 mg·kg-1 of body mass·day-1) or a placebo. The intergroup statistical significance was calculated by a one-way analysis of variance, followed by Student's t-test. The data correlations were calculated using Pearson's test.

resultsIn the control group, ammonemia increased during matches at almost twice the rate of the arginine group (25 mmol·L-1·min-1 and 13 μmol·L-1·min-1, respectively). Exercise induced an increase in leukocytes of approximately 75%. An even greater difference was observed in the lymphocyte count, which increased 2.2-fold in the control group; this increase was partially prevented by arginine supplementation. The shape of the ammonemia curve suggests that arginine helps prevent increases in ammonia levels.

conclusionsThese data indicate that increases in lymphocytes and ammonia are simultaneously reduced by arginine supplementation. We propose that increased serum lymphocytes could be related to changes in ammonemia and ammonia metabolism.

Identifiers

PMID22734448
PMCPMC3502551
OpenAlexW2126352357

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.